.htree-list {margin-left:1em}
.htree-node {display:flex;flex-direction:row;flex-wrap:wrap;align-items:center;height:2em}
.htree-node > * {margin:0 3px}
.htree-node > i:first-child {width:0.6em}
.htree-node > input[type=checkbox] {border:0;width:1em}
.htree-node > input[type=text] {border:0;width:1em;flex-grow:1}
.htree-node > span.fa-stack {width:1em;color:gainsboro}
.htree-node > span.fa-stack:hover {color:black}
.htree-node > span.i-down {transform:translate(0px,2px)}
.htree-node > span.i-up {transform:translate(0px,-2px)}
.htree-node > i.fa-trash-o {color:gainsboro; width:0.6em}
.htree-node > i.fa-trash-o:hover {color:black}